Home / 10,991.16-15,167.83-5,955.36

Finding the Fourth Proportional to 10,991.16, 15,167.83 and 5,955.36

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Solution

The fourth proportional to 10,991.16, 15,167.83 and 5,955.36 is: 8,218.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.16 : 15,167.83 = 5,955.36 : x
  2. Step 2: Convert to fraction form
    10,991.16/15,167.83 = 5,955.36/x
  3. Step 3: Cross multiply
    10,991.16x = 15,167.83 × 5,955.36
  4. Step 4: Simplify right side
    10,991.16x = 90,329,888.07
  5. Step 5: Solve for x
    x = 90,329,888.07/10,991.16
  6. Step 6: Final answer
    x = 8,218.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.